Home / 19,688.20-27,172.14-11,304.52

Finding the Fourth Proportional to 19,688.20, 27,172.14 and 11,304.52

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Solution

The fourth proportional to 19,688.20, 27,172.14 and 11,304.52 is: 15,601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.20 : 27,172.14 = 11,304.52 : x
  2. Step 2: Convert to fraction form
    19,688.20/27,172.14 = 11,304.52/x
  3. Step 3: Cross multiply
    19,688.20x = 27,172.14 × 11,304.52
  4. Step 4: Simplify right side
    19,688.20x = 307,168,000.07
  5. Step 5: Solve for x
    x = 307,168,000.07/19,688.20
  6. Step 6: Final answer
    x = 15,601.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.